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f.monroe · 12-26-2008, 10:31 PM

86 should have been peanut port head which is a small oval port head . The square port intake is for the early high performance heads that had square (rectangle) ports . I think that intake would do more harm than good on your truck .
Frank

12-26-2008, 10:31 PM	#2
f.monroe Senior Member Join Date: May 2004 Location: Caldwell,Tx. Posts: 3,648	Re: 1986 454, Square or Oval Port Head? 86 should have been peanut port head which is a small oval port head . The square port intake is for the early high performance heads that had square (rectangle) ports . I think that intake would do more harm than good on your truck . Frank __________________ Born and proudly residing in a Red State !